//part1:C09:ex9.42.cpp
//read char and store it to a string.
#include <iostream>
#include <string>
#include <vector>
using namespace std;
void input_string(string& s) {
  s.reserve(100);
  char ch;
  while (cin >> ch) {
    s.push_back(ch);
  }
}

int main(void) {
  string str;
  input_string(str);
  cout << str << endl;
  
  return 0;
}
